4-piperidin-1-ylisoquinoline InChI=1/C14H16N2/c1-4-8-16(9-5-1)14-11-15-10-12-6-2-3-7-13(12)14/h2-3,6-7,10-11H,1,4-5,8-9H isoquinoline, 4-(1-piperidinyl)-